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Posted to commits@dubbo.apache.org by me...@apache.org on 2019/08/16 09:22:16 UTC

[dubbo] branch cloud-native updated: [Enhancement] Sync the Metadata storage type into ApplicationConfig (#4858)

This is an automated email from the ASF dual-hosted git repository.

mercyblitz pushed a commit to branch cloud-native
in repository https://gitbox.apache.org/repos/asf/dubbo.git


The following commit(s) were added to refs/heads/cloud-native by this push:
     new 870782e  [Enhancement] Sync the Metadata storage type into ApplicationConfig (#4858)
870782e is described below

commit 870782e9d3ce6dac9fda6af366a21cfb0c52e824
Author: Mercy Ma <me...@gmail.com>
AuthorDate: Fri Aug 16 17:22:09 2019 +0800

    [Enhancement] Sync the Metadata storage type into ApplicationConfig (#4858)
    
    * Polish apache/dubbo#4542 : [Enhancement] Adapt the Java standard Event/Listener mechanism
    
    * Polish apache/dubbo#4541 : [Feature] Add local File System DynamicConfigurationFactory‘s extension
    
    * Polish apache#4541 : Bugfix
    
    * Polish apache/dubbo#4541 : Optimization
    
    * Polish apache/dubbo#4541 : Add the compatibility for PollingWatchService on the some platforms
    
    * Polish apache/dubbo#4541 : Add delay publish without ThreadPoolExecutor
    
    * Polish apache/dubbo#4541 : Refactor the extension name
    
    * Polish apache/dubbo#4541 : Add remove ops
    
    * Polish apache/dubbo#4541 : Add testable constructor
    
    * Polish apache/dubbo#4541 : Add getConfigGroups method
    
    * Polish apache/dubbo#4610 : [Refactor] Refactor the bootstrap module
    
    * Polish apache/dubbo#4541 : Fix the nulling URL issue
    
    * Polish apache/dubbo#4622 : [Refactor] Refactor ConfigManager
    
    * Polish apache/dubbo#4622 : [Refactor] Refactor ConfigManager
    
    * Polish apache/dubbo#4622 : Support multiple configcenters
    
    * Polish apache/dubbo#4671 : ServiceNameMapping will not map the group, version and protocol
    
    * update referenceCount log (#4683)
    
    Add comments to support multiple shared connections
    
    * Polish /apache/dubbo#4687 : Remove the duplicated test code in dubbo-config-spring (#4688)
    
    * #4685  修改代码if判断false问题 if (hasException == false)修改成if (!hasException) (#4695)
    
    * Fixed Service annotation method parameters are not in effect (#4598)
    
    * keep demo simple, and switch to use zookeeper as registry center (#4705)
    
    * keep demo simple, and switch to use zookeeper as registry center
    
    * remove comment
    
    * @Reference auto-wires the instance of generic interface #4594 (#4677)
    
    * try to shorten maven output to make travis build pass (#4710)
    
    * use CountDownLatch to check zk registry if establish connection (#4589)
    
    * Minor change
    
    * Rename the extension name of WritableMetadataService
    
    * Polish apache/dubbo#4759 : [Refactor] Change the signature of methods of MetadataService #4759
    
    * Merge remote-tracking branch 'upstream/master' into dubbo-cloud-native
    
    # Conflicts:
    #	dubbo-all/pom.xml
    #	dubbo-bom/pom.xml
    #	dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/AbstractInterfaceConfig.java
    #	dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ApplicationConfig.java
    #	dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ConfigCenterConfig.java
    #	dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ReferenceConfig.java
    #	dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/RegistryConfig.java
    #	dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ServiceConfig.java
    #	dubbo-config/dubbo-config-api/src/test/java/org/apache/dubbo/config/ReferenceConfigTest.java
    #	dubbo-configcenter/dubbo-configcenter-api/src/main/java/org/apache/dubbo/configcenter/DynamicConfiguration.java
    #	dubbo-configcenter/dubbo-configcenter-api/src/test/java/org/apache/dubbo/configcenter/mock/MockDynamicConfiguration.java
    #	dubbo-configcenter/dubbo-configcenter-consul/src/main/java/org/apache/dubbo/configcenter/consul/ConsulDynamicConfiguration.java
    #	dubbo-configcenter/dubbo-configcenter-etcd/src/test/java/org/apache/dubbo/configcenter/support/etcd/EtcdDynamicConfigurationTest.java
    #	dubbo-configcenter/dubbo-configcenter-nacos/src/main/java/org/apache/dubbo/configcenter/support/nacos/NacosDynamicConfiguration.java
    #	dubbo-configcenter/dubbo-configcenter-nacos/src/test/java/org/apache/dubbo/configcenter/support/nacos/NacosDynamicConfigurationTest.java
    #	dubbo-configcenter/dubbo-configcenter-zookeeper/src/main/java/org/apache/dubbo/configcenter/support/zookeeper/ZookeeperDynamicConfiguration.java
    #	dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/definition/model/MethodDefinition.java
    #	dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/report/identifier/MetadataIdentifier.java
    #	dubbo-metadata/dubbo-metadata-api/src/main/java/org/apache/dubbo/metadata/report/support/AbstractMetadataReport.java
    #	dubbo-metadata/dubbo-metadata-api/src/test/java/org/apache/dubbo/metadata/report/identifier/MetadataIdentifierTest.java
    #	dubbo-metadata/dubbo-metadata-definition-protobuf/src/main/java/org/apache/dubbo/metadata/definition/protobuf/ProtobufTypeBuilder.java
    #	dubbo-metadata/dubbo-metadata-definition-protobuf/src/test/java/org/apache/dubbo/metadata/definition/protobuf/ProtobufTypeBuilderTest.java
    #	dubbo-metadata/pom.xml
    #	dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/integration/AbstractConfiguratorListener.java
    #	dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosRegistry.java
    #	dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosRegistryFactory.java
    #	dubbo-rpc/dubbo-rpc-xml/src/main/java/org/apache/dubbo/xml/rpc/protocol/xmlrpc/XmlRpcProtocol.java
    
    * Polish apache/dubbo#3984 : Add the implementation of Page<ServiceInstance> getInstances(String serviceName, int offset, int pageSize, boolean healthyOnly)
    
    * Code merge
    
    * Fix the cases
    
    * Merge remote-tracking branch 'upstream/cloud-native' into dubbo-cloud-native
    
    # Conflicts:
    #	dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProviderBootstrap.java
    #	dubbo-metadata/dubbo-metadata-definition-protobuf/pom.xml
    #	dubbo-registry/dubbo-registry-api/src/test/java/org/apache/dubbo/registry/support/ServiceOrientedRegistryTest.java
    #	dubbo-registry/dubbo-registry-consul/src/main/java/org/apache/dubbo/registry/consul/ConsulServiceDiscoveryFactory.java
    #	dubbo-registry/dubbo-registry-etcd3/src/main/java/org/apache/dubbo/registry/etcd/EtcdServiceDiscovery.java
    
    * Refactor ConfigManager
    
    * Refactor ConfigManager
    
    * Resolve the issues on ConfigManager
    
    * Refactor and add test-cases for ConfigManager
    
    * Polish apache/dubbo#4774 : [Feature] Dubbo Cloud Native - To Support in Spring
    
    * Polish apache/dubbo#4808 : [Feature] Add the registered/unregistered event mechanism ShutdownHook
    
    * Polish apache/dubbo#4807 : [Feature] Add the callback mechanism ShutdownHook #4807
    
    * Polish apache/dubbo#4813 : [Feature] add Prioritized implementation for ServiceInstanceCustomizer
    
    * Polish apache/dubbo#4815 : [Feature] Add the ServiceLoader for Dubbo's services or components
    
    * Polish apache/dubbo#4815 : [Feature] Add the ServiceLoader for Dubbo's services or components
    
    * Polish apache/dubbo#4813 : [Feature] add Prioritized implementation for ServiceInstanceCustomizer
    
    * Polish apache/dubbo#4807 : Add sort implementation
    
    * Refactor
    
    * Refactor
    
    * Polish apache/dubbo#4845 : [Feature] Enhance the Event-Publishing feature to original ServiceDiscovery
    
    * Merge remote-tracking branch 'upstream/cloud-native' into dubbo-cloud-native
    
    # Conflicts:
    #	dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/DefaultServiceDiscoveryFactory.java
    #	dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java
    
    * Merge remote-tracking branch 'upstream/cloud-native' into dubbo-cloud-native
    
    # Conflicts:
    #	dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/DefaultServiceDiscoveryFactory.java
    #	dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java
    
    * Polish apache/dubbo#4854 : [Feature] MetadataService supports the Dubbo protocol under auto-increased port
    
    * Polish apache/dubbo#4857 : [Enhancement] Sync the Metadata storage type into ApplicationConfig
---
 dubbo-all/pom.xml                                  |  4 ++++
 .../org/apache/dubbo/bootstrap/DubboBootstrap.java | 10 +++++++++-
 .../bootstrap/DubboServiceProvider2Bootstrap.java  |  5 ++++-
 .../bootstrap/DubboServiceProviderBootstrap.java   |  6 +-----
 .../org/apache/dubbo/config/ApplicationConfig.java | 11 ++++++-----
 .../dubbo/config/builders/ApplicationBuilder.java  |  2 +-
 dubbo-registry/dubbo-registry-api/pom.xml          |  8 ++++++++
 .../registry/client/ServiceDiscoveryRegistry.java  |  2 +-
 .../metadata/RefreshServiceMetadataCustomizer.java | 10 +++++-----
 .../metadata/ServiceInstanceMetadataUtils.java     | 22 ++++++++++++++++++----
 10 files changed, 57 insertions(+), 23 deletions(-)

diff --git a/dubbo-all/pom.xml b/dubbo-all/pom.xml
index dd68787..35790a4 100644
--- a/dubbo-all/pom.xml
+++ b/dubbo-all/pom.xml
@@ -792,6 +792,10 @@
                                     </resource>
                                 </transformer>
                                 <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
+                                    <resource>META-INF/dubbo/internal/org.apache.dubbo.registry.client.ServiceDiscovery
+                                    </resource>
+                                </transformer>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                     <resource>META-INF/dubbo/internal/org.apache.dubbo.metadata.definition.builder.TypeBuilder
                                     </resource>
                                 </transformer>
diff --git a/dubbo-bootstrap/src/main/java/org/apache/dubbo/bootstrap/DubboBootstrap.java b/dubbo-bootstrap/src/main/java/org/apache/dubbo/bootstrap/DubboBootstrap.java
index 7ab9968..0c864c4 100644
--- a/dubbo-bootstrap/src/main/java/org/apache/dubbo/bootstrap/DubboBootstrap.java
+++ b/dubbo-bootstrap/src/main/java/org/apache/dubbo/bootstrap/DubboBootstrap.java
@@ -84,6 +84,7 @@ import static org.apache.dubbo.common.function.ThrowableAction.execute;
 import static org.apache.dubbo.common.utils.StringUtils.isNotEmpty;
 import static org.apache.dubbo.config.context.ConfigManager.getInstance;
 import static org.apache.dubbo.metadata.WritableMetadataService.getExtension;
+import static org.apache.dubbo.metadata.WritableMetadataService.getMetadataStorageType;
 import static org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils.setMetadataStorageType;
 import static org.apache.dubbo.remoting.Constants.CLIENT_KEY;
 
@@ -455,6 +456,8 @@ public class DubboBootstrap extends GenericEventListener implements Lifecycle {
 
             useRegistryAsConfigCenterIfNecessary();
 
+            initApplicationMetadata();
+
             initMetadataService();
 
             initMetadataServiceExporter();
@@ -472,6 +475,11 @@ public class DubboBootstrap extends GenericEventListener implements Lifecycle {
         return this;
     }
 
+    private void initApplicationMetadata() {
+        String metadataStorageType = getMetadataStorageType(isDefaultMetadataStorageType());
+        getApplication().setMetadataStorageType(metadataStorageType);
+    }
+
     private void startConfigCenter() {
         Collection<ConfigCenterConfig> configCenters = configManager.getConfigCenters();
 
@@ -491,7 +499,7 @@ public class DubboBootstrap extends GenericEventListener implements Lifecycle {
                 () -> new IllegalStateException("There's no ApplicationConfig specified.")
         );
 
-        String metadataType = applicationConfig.getMetadata();
+        String metadataType = applicationConfig.getMetadataStorageType();
         // FIXME, multiple metadata config support.
         Collection<MetadataReportConfig> metadataReportConfigs = configManager.getMetadataConfigs();
         if (CollectionUtils.isEmpty(metadataReportConfigs)) {
diff --git a/dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProvider2Bootstrap.java b/dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProvider2Bootstrap.java
index 15bb814..03b9e1d 100644
--- a/dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProvider2Bootstrap.java
+++ b/dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProvider2Bootstrap.java
@@ -18,6 +18,7 @@ package org.apache.dubbo.bootstrap;
 
 import org.apache.dubbo.bootstrap.rest.UserService;
 import org.apache.dubbo.bootstrap.rest.UserServiceImpl;
+import org.apache.dubbo.config.MetadataReportConfig;
 
 /**
  * Dubbo Provider Bootstrap
@@ -28,12 +29,14 @@ public class DubboServiceProvider2Bootstrap {
 
     public static void main(String[] args) {
         new DubboBootstrap()
+                .defaultMetadataStorageType(false)
                 .application("dubbo-provider-demo")
                 // Zookeeper in service registry type
                 .registry("zookeeper", builder -> builder.address("zookeeper://127.0.0.1:2181?registry.type=service"))
                 // Nacos
-                .registry("nacos", builder -> builder.address("nacos://127.0.0.1:8848?registry.type=service"))
+//                .registry("nacos", builder -> builder.address("nacos://127.0.0.1:8848?registry.type=service"))
 //                .registry(RegistryBuilder.newBuilder().address("etcd3://127.0.0.1:2379?registry.type=service").build())
+                .metadataReport(new MetadataReportConfig("zookeeper://127.0.0.1:2181"))
                 .protocol("dubbo", builder -> builder.port(20885).name("dubbo"))
                 .protocol("rest", builder -> builder.port(9090).name("rest"))
                 .service(builder -> builder.id("echo").interfaceClass(EchoService.class).ref(new EchoServiceImpl()).protocolIds("dubbo"))
diff --git a/dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProviderBootstrap.java b/dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProviderBootstrap.java
index d0b7e4a..8dabb16 100644
--- a/dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProviderBootstrap.java
+++ b/dubbo-bootstrap/src/test/java/org/apache/dubbo/bootstrap/DubboServiceProviderBootstrap.java
@@ -25,10 +25,6 @@ import org.apache.dubbo.config.RegistryConfig;
 import org.apache.dubbo.config.ServiceConfig;
 
 import java.util.Arrays;
-import java.util.HashMap;
-import java.util.Map;
-
-import static org.apache.dubbo.common.constants.CommonConstants.METADATA_KEY;
 
 /**
  * Dubbo Provider Bootstrap
@@ -67,7 +63,7 @@ public class DubboServiceProviderBootstrap {
 //        userService.setRegistries(Arrays.asList(interfaceRegistry, serviceRegistry));
 
         ApplicationConfig applicationConfig = new ApplicationConfig("dubbo-provider-demo");
-        applicationConfig.setMetadata("remote");
+        applicationConfig.setMetadataStorageType("remote");
         new DubboBootstrap()
                 .application(applicationConfig)
                 // Zookeeper in service registry type
diff --git a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ApplicationConfig.java b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ApplicationConfig.java
index 535a182..9880c23 100644
--- a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ApplicationConfig.java
+++ b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ApplicationConfig.java
@@ -150,7 +150,7 @@ public class ApplicationConfig extends AbstractConfig {
     /**
      * Metadata type, local or remote, if choose remote, you need to further specify metadata center.
      */
-    private String metadata;
+    private String metadataStorageType;
 
     public ApplicationConfig() {
     }
@@ -334,6 +334,7 @@ public class ApplicationConfig extends AbstractConfig {
 
     /**
      * The format is the same as the springboot, including: getQosEnableCompatible(), getQosPortCompatible(), getQosAcceptForeignIpCompatible().
+     *
      * @return
      */
     @Parameter(key = QOS_ENABLE_COMPATIBLE, excluded = true)
@@ -387,12 +388,12 @@ public class ApplicationConfig extends AbstractConfig {
         return !StringUtils.isEmpty(name);
     }
 
-    public String getMetadata() {
-        return metadata;
+    public String getMetadataStorageType() {
+        return metadataStorageType;
     }
 
-    public void setMetadata(String metadata) {
-        this.metadata = metadata;
+    public void setMetadataStorageType(String metadataStorageType) {
+        this.metadataStorageType = metadataStorageType;
     }
 
     @Override
diff --git a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/builders/ApplicationBuilder.java b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/builders/ApplicationBuilder.java
index f4a8047..5f6f999 100644
--- a/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/builders/ApplicationBuilder.java
+++ b/dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/builders/ApplicationBuilder.java
@@ -177,7 +177,7 @@ public class ApplicationBuilder extends AbstractBuilder<ApplicationConfig, Appli
         super.build(config);
 
         config.setName(name);
-        config.setMetadata(metadata);
+        config.setMetadataStorageType(metadata);
         config.setVersion(this.version);
         config.setOwner(this.owner);
         config.setOrganization(this.organization);
diff --git a/dubbo-registry/dubbo-registry-api/pom.xml b/dubbo-registry/dubbo-registry-api/pom.xml
index 9d47281..d66a244 100644
--- a/dubbo-registry/dubbo-registry-api/pom.xml
+++ b/dubbo-registry/dubbo-registry-api/pom.xml
@@ -31,11 +31,19 @@
         <skip_maven_deploy>false</skip_maven_deploy>
     </properties>
     <dependencies>
+
         <dependency>
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-common</artifactId>
             <version>${project.parent.version}</version>
         </dependency>
+
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-config-api</artifactId>
+            <version>${project.parent.version}</version>
+        </dependency>
+
         <dependency>
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo-cluster</artifactId>
diff --git a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java
index 725963a..fd86ab6 100644
--- a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java
@@ -156,7 +156,7 @@ public class ServiceDiscoveryRegistry extends FailbackRegistry {
     private ServiceDiscovery enhanceEventPublishing(ServiceDiscovery original) {
         return new EventPublishingServiceDiscovery(original);
     }
-  
+
     protected boolean shouldRegister(URL providerURL) {
 
         String side = providerURL.getParameter(SIDE_KEY);
diff --git a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/RefreshServiceMetadataCustomizer.java b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/RefreshServiceMetadataCustomizer.java
index 3265709..62b5a99 100644
--- a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/RefreshServiceMetadataCustomizer.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/RefreshServiceMetadataCustomizer.java
@@ -4,7 +4,7 @@ import org.apache.dubbo.metadata.WritableMetadataService;
 import org.apache.dubbo.registry.client.ServiceInstance;
 import org.apache.dubbo.registry.client.ServiceInstanceCustomizer;
 
-import static org.apache.dubbo.metadata.WritableMetadataService.DEFAULT_EXTENSION;
+import static org.apache.dubbo.metadata.WritableMetadataService.getExtension;
 import static org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils.getExportedServicesRevision;
 import static org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils.getMetadataStorageType;
 import static org.apache.dubbo.registry.client.metadata.ServiceInstanceMetadataUtils.getSubscribedServicesRevision;
@@ -22,12 +22,12 @@ public class RefreshServiceMetadataCustomizer implements ServiceInstanceCustomiz
 
     @Override
     public void customize(ServiceInstance serviceInstance) {
-        // FIXME to define the constant
+
         String metadataStoredType = getMetadataStorageType(serviceInstance);
-        WritableMetadataService remoteWritableMetadataService =
-                WritableMetadataService.getExtension(metadataStoredType == null ? DEFAULT_EXTENSION : metadataStoredType);
 
-        remoteWritableMetadataService.refreshMetadata(getExportedServicesRevision(serviceInstance),
+        WritableMetadataService writableMetadataService = getExtension(metadataStoredType);
+
+        writableMetadataService.refreshMetadata(getExportedServicesRevision(serviceInstance),
                 getSubscribedServicesRevision(serviceInstance));
     }
 }
diff --git a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/ServiceInstanceMetadataUtils.java b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/ServiceInstanceMetadataUtils.java
index 7840263..9367861 100644
--- a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/ServiceInstanceMetadataUtils.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/metadata/ServiceInstanceMetadataUtils.java
@@ -17,6 +17,8 @@
 package org.apache.dubbo.registry.client.metadata;
 
 import org.apache.dubbo.common.URL;
+import org.apache.dubbo.config.ApplicationConfig;
+import org.apache.dubbo.config.context.ConfigManager;
 import org.apache.dubbo.metadata.MetadataService;
 import org.apache.dubbo.metadata.WritableMetadataService;
 import org.apache.dubbo.registry.client.ServiceInstance;
@@ -187,10 +189,10 @@ public class ServiceInstanceMetadataUtils {
      *
      * @param registryURL the {@link URL} to connect the registry
      * @return if not found in {@link URL#getParameters() parameters} of {@link URL registry URL}, return
-     * {@link WritableMetadataService#DEFAULT_METADATA_STORAGE_TYPE "default"}
+     * {@link #getDefaultMetadataStorageType()}
      */
     public static String getMetadataStorageType(URL registryURL) {
-        return registryURL.getParameter(METADATA_STORAGE_TYPE_KEY, DEFAULT_METADATA_STORAGE_TYPE);
+        return registryURL.getParameter(METADATA_STORAGE_TYPE_KEY, getDefaultMetadataStorageType());
     }
 
     /**
@@ -198,11 +200,23 @@ public class ServiceInstanceMetadataUtils {
      *
      * @param serviceInstance the specified {@link ServiceInstance}
      * @return if not found in {@link ServiceInstance#getMetadata() metadata} of {@link ServiceInstance}, return
-     * {@link WritableMetadataService#DEFAULT_METADATA_STORAGE_TYPE "default"}
+     * {@link #getDefaultMetadataStorageType()}
      */
     public static String getMetadataStorageType(ServiceInstance serviceInstance) {
         Map<String, String> metadata = serviceInstance.getMetadata();
-        return metadata.getOrDefault(METADATA_STORAGE_TYPE_KEY, DEFAULT_METADATA_STORAGE_TYPE);
+        return metadata.getOrDefault(METADATA_STORAGE_TYPE_KEY, getDefaultMetadataStorageType());
+    }
+
+    /**
+     * Get the default Metadata storage type from {@link ApplicationConfig} if present, or
+     * {@link WritableMetadataService#DEFAULT_METADATA_STORAGE_TYPE "default"}
+     *
+     * @return non-null
+     */
+    public static String getDefaultMetadataStorageType() {
+        return ConfigManager.getInstance().getApplication()
+                .map(ApplicationConfig::getMetadataStorageType)
+                .orElse(DEFAULT_METADATA_STORAGE_TYPE);
     }
 
     /**